Product Details:
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Place of Origin: | Shenzhen China |
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Brand Name: | Sopto |
Certification: | CE RoHS FCC |
Model Number: | SPT-SFP28-SR |
Payment & Shipping Terms:
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Minimum Order Quantity: | 1pcs |
Packaging Details: | 10pcs standard boxes, mass order with carton box package can do OEM according to customer's request. |
Delivery Time: | 5-8 days |
Payment Terms: | L/C, T/T,Paypal, D/P |
Supply Ability: | 10000 pcs per month |
Detail Information |
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Wavelength: | 850nm | Fiber Type: | MMF |
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Product Name: | Fiber Optic Transceiver/ 25g Sfp28 Module | Certification: | CE RoHS FCC |
Transmission Distance: | 100m | Application: | FTTH FTTB FTTX Network,Telecommunication |
Data Rate: | 25Gb/s | Brand: | Sopto,OEM |
Operating Temperature: | Commercial 0 To 70 | MOQ: | 1pcs |
High Light: | 850nm Fiber Optic Transceiver,Sr Fiber Optic Transceiver,Sfp28 Transceiver |
Product Description
Multimode 25gb/S Sfp28 Sr 850nm Fiber Optic Transceiver
Description of 25g sfp28 SR module
Sopto 850 nm VCSEL 25Gigabit SFP28 transceiver is designed to transmit and receive optical data over 50 μm multimode optical fiber (Table 1).
The SFP28 SR module electrical interface is compliant to SFI electrical specifications. The transmitter input and receiver output impedance is 100 Ohms differential. Data lines are internally AC coupled. The module provides differential termination and reduce differential to common mode conversion for quality signal termination and low EMI. SFI typically operates over 200 mm of improved FR4 material or up to about 150mm of standard FR4 with one connector.
The transmitter converts 25Gbit/s serial PECL or CML electrical data into serial optical data compliant with the 25GBASE-SR standard. An open collector compatible Transmit Disable (Tx_Dis) is provided. Logic “1”or no connection on this pin will disable the laser from transmitting. Logic “0” on this pin provides normal operation. The transmitter has an internal automatic power control loop (APC) to ensure constant optical power output across supply voltage and temperature variations. An open collector compatible Transmit Fault (Tx_Fault) is provided. TX_Fault is module output contact that when high, indicates that the module transmitter has detected a fault condition related to laser operation or safety. The TX_Fault output contact is an open drain/collector and shall be pulled up to the Vcc_Host in the host with a resistor in the range 4.7-10 kΩ. TX_Disable is a module input contact. When TX_Disable is asserted high or left open, the SFP28 module transmitter output shall be turned off. This contact shall be pulled up to VccT with a 4.7 kΩ to 10 kΩ resistor
The receiver converts 25Gbit/s serial optical data into serial PECL/CML electrical data. An open collector compatible Loss of Signal is provided. Rx_LOS when high indicates an optical signal level below that specified in the relevant standard. The Rx_LOS contact is an open drain/collector output and shall be pulled up to Vcc_Host in the host with a resistor in the range 4.7-10 kΩ, or with an active termination. Power supply filtering is recommended for both the transmitter and receiver. The Rx_LOS signal is intended as a preliminary indication to the system in which the SFP28 is installed that the received signal strength is below the specified range. Such an indication typically points to non-installed cables, broken cables, or a disabled, failing or a powered off transmitter at the far end of the cable.
Fiber type | 850nm OFL Bandwidth | Supported Distances (meters) |
50μmMMF | OM4 | 2 to 100 |
50μmMMF | OM3 | 2 to 70 |
Table 1: SFP28 SR Operating Range for each Optical Fiber Type
Features of 25g SFP28 SR Module
● 25Gb/s serial optical interface
● 850nm VCSEL transmitter, PIN photo-detector
● Maximum link length of 70m on OM3 MMF and 100m on OM4 MMF
● 2-wire interface for management specifications compliant with SFF 8472 digital diagnostic monitoring interface for optical transceivers
● Operating case temperature: 0 to 70°C
● All-metal housing for superior EMI performance
● Low power consumption
● Advanced firmware allow customer system encryption information to be stored in transceiver
● Cost effective SFP28 solution, enables higher port densities and greater bandwidth
● RoHS compliant
Applications
● 25GBASE-SR Ethernet
● High-speed storage area networks
● Computer cluster cross-connect
● Custom high-speed data pipes
● Inter Rack Connection
Specifications
Product NO. | SPT-SFP28-SR |
Wavelength | 850nm |
Product name | 25g SFP28 module |
Transmission Distance | 100m |
Operating temperature | Standard: 0 to +70°C |
Date rate | 25Gbps |
Aplications | 25GBASE-SR Ethernet |
Power supply | Single 3.135~3.465V |
Package Type | SFP28 |
Optical Characteristics
The following optical characteristics are defined over the Recommended Operating Environment unless otherwise specified.
Parameter | Symbol | Min. | Typical | Max | Unit | Notes |
Transmitter | ||||||
Center Wavelength | λt | 840 | 850 | 860 | nm | |
RMS spectral width | Pm | 0.6 | nm | |||
Average Optical Power | Pavg | -8.4 | 2.4 | dBm | ||
Optical Power OMA | Poma | -6.4 | -1.5 | 3 | dBm | |
Laser Off Power | Poff | -30 | dBm | |||
Extinction Ratio | ER | 2 | dB | |||
Transmitter Dispersion Penalty | TDP | 4.3 | dB | |||
Optical Return Loss Tolerance | 12 | dB | ||||
Receiver | ||||||
Center Wavelength | λr | 840 | 850 | 860 | nm | |
Receiver Sensitivity (Average power) | Psens | -9.5 | dBm |
BER = 1x10-12
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Receiver Sensitivity (OMA) | Psens | -10.3 | dBm | BER <5x10-5 | ||
Stressed Sensitivity (OMA) | -5.2 | dBm | BER <5x10-5 | |||
LOSAssert | LOSA | -30 | dBm | |||
LOSDeassert | LOSD | -7.5 | dBm | |||
LOS Hysteresis | LOSH | dB | ||||
Overload | Pin | 2.4 | dBm | Note1 | ||
Receiver Reflectance | -7.5 | dB |
Note:
1. Typical BER is less than 1x10-12, maximum BER is 5x10-5 .
Ordering information
Part Number | Product Description |
SPT-SFP28-SR | 25.78Gbps, 850nm SFP28 SR 100m fiber optic module, 0ºC ~ +70ºC |
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